Improvement in portable ovens



UNITED STATES PATENT CEEIGE.

WILLIAM S. ROBINSON, OF OSKALOOSA, IOWA, ASSIGNOR TO HIMSELF AND MARTIN MORRIS, OF SAME PLACE.

IMPROVEMENT IN PORTABLE OVENS.

Specification forming part of Letters Patent No. 117,464, dated July 25, 1871.

To all whom it may concern:

Be it known that I, WILLIAM S. ROBINSON, of Oskaloosa, in the county of Mahaska and State of Iowa, have invented certain new and useful Improvements in Portable Ovens; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing and to the letters of reference marked thereon which form a part of this specification.

The nature of my invention consists in the construction and arrangement of a baking-oven,l as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its oonstruotion and operation, referring to the annexed drawing, in which--` Figure 1 is alougitudinal vertical section. Fig. 2 is a side elevation, and Fig. 3 a front view of my oven.

A represents the oven made of any suitable size and shape, and supported upon legs B B.

The oven is made double, so as to form a iiue or chamber all around it, except where the door C is, said door being on its inner side provided withflanges to form, as near as possible, air-tight joints when closed, thus keeping the heat in. In the bottom of the outer shell ofthe oven is an opening with grooves at the sides, in which the re-box I) is placed, said lire-box being on top provided with two dampers,a a,to admit or shut off the smoke, heat, Src., from the oven. When 'the dampers a a are opened, the smoke and heat pass all around the oven and out through the smoke-pipeE, which also has a damper, b. When the dampers a a are closed, the smoke and heat pass out through the escape-pipe G, and' into the smoke-pipe E; above the damper b. This escape-pipe G has also a damper, d, to be closed when the heat is admitted to the oven. By this arrangement of dampers the operator has perfect control over the heat. In the sides ofthe oven are slides ff, which may be opened to cool down the oven rapidly. Air is admitted into the lire-box D through au opening, i, at the back, whereby the draught is equalized. Within the oven is to be a series of shelves or gratin gs upon which to place the articles baking.

This oven,when in use, may stand by the side of a stove and a pipe attached to the stove-pipe, or to any ilue that may be desired.

Having thus fully described my invention, what I claim as new, and desire to seoure by Letters Patent, is-

The within-described cookin g-oven, having the ire-box D, dampers a a b d, escape-pipe G, smokepipe E, and slides ff, all arranged substantially in the manner and for the purpose set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

WILLIAM S. ROBINSON. Witnesses:

J oHN F. LACEY, W. E. SHEPHERD. 

